<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <input type="text">
    <input type="password">
    性别: 
    <input type="radio" name="sex">男
    <input type="radio" name="sex" checked="checked">女
    <br/>
    爱好:<input type="checkbox"> 吃饭 <input type="checkbox"> 睡觉 
    <input type="button" value="提交">
    <br>
    <textarea name="aaaa" id="a" cols="30" rows="10"> </textarea>
    <br>
    <div>
        <div>
            
        </div>
    </div>
</body>
</html>